The UNCOVER study is a longitudinal observational cohort focused on patients at high risk for cancer cachexia. At Kaiser Permanente Northern California, up to 800 individuals with advanced or unresectable non-small cell lung cancer, pancreatic adenocarcinoma, or colorectal cancer will be enrolled, as these malignancies carry a substantial risk of cancer cachexia, which is characterized by progressive loss of weight, muscle, and adipose tissue, accompanied by functional decline and reduced quality of life. Data collected includes demographic, physiologic, and clinical data, including tumor characteristics and biomarkers of inflammation, hormonal and metabolic status, body composition, physical function, and patient reported outcomes. Investigators will identify patient phenotypes (i.e., subgroups) that may reflect distinct biological or clinical pathways underlying cancer cachexia. By characterizing heterogeneity in cancer cachexia, this study aims to inform the development of improved diagnostic criteria and more targeted therapeutic strategies, ultimately enhancing clinical trial design and supportive care for patients with advanced colorectal, lung, or pancreatic cancer.
PRIMARY OBJECTIVES: I. To identify multiple distinct diagnostic phenotypes within the syndrome of cancer cachexia as defined by host characteristics (e.g. cachexia symptoms, physical activity, physical function, blood biomarkers, and body composition) at baseline and change in these factors over time in patients with cancer at high risk for cancer cachexia. II. To determine the association of each cancer cachexia phenotype with overall survival. SECONDARY OBJECTIVES: I. To determine the association of each cancer cachexia phenotype with functional decline and treatment intolerance. II. To inform clinical practice guidelines for prompt recognition of patients likely to progress to refractory cachexia, identify early predictors apparent at clinical presentation of each cancer cachexia phenotype defined in the primary objective.
Study Type
OBSERVATIONAL
Enrollment
800
Undergo collection of blood and archived tumor samples. A sub-sample undergo collection of stool samples.
Undergo CT or PET/CT scan
Electronic Health Record Review
Wear actigraph
Undergo physical function assessments including 30-second bicep curl, timed up and go (TUG), and 30-second sit to stand
Undergo PET/CT scan
Complete surveys
Kaiser Permanente Northern California
Pleasanton, California, United States
RECRUITINGMultiple distinct diagnostic cancer cachexia phenotypes
Phenotypes will be based on patient-reported symptoms, physical activity and function assessments, biomarkers, and body composition measured longitudinally using latent class analysis and other clustering methods.
Time frame: Baseline through study completion, assessed up to 1 year follow up
Overall survival: time to death
Time to death will be assessed as the interval between phenotype ascertainment and death from any cause. Participants without a recorded death event will be censored at the end of available follow-up (e.g., end of health plan membership or the study observation period).
Time frame: Baseline to death (the event) or the last contact (censored), assessed up to 1 year follow up
Functional decline
Associations between each cancer cachexia phenotype and functional decline is a secondary outcome. Functional status will be measured at baseline and study completion by physical function assessments and patient-reported questionnaires.
Time frame: Baseline through study completion, assessed up to 1 year follow up
Treatment intolerance
Treatment intolerance will be modeled as time to event outcomes. Treatment data including chemotherapy, targeted therapy, and immunotherapy will be obtained from the electronic medical record.
Time frame: Baseline through study completion, assessed up to 1 year follow up
Early predictors of decline
Logistic regression will be used to identify patient characteristics apparent at clinical presentation that are early predictors of each cancer cachexia phenotype, focusing on the high-risk phenotypes that are associated with poor outcomes.
Time frame: Baseline through study completion, assessed up to 1 year follow up
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